{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-42090 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-42090 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-42090 is a critical unsafe deserialization vulnerability in Zammad Zammad, published on 7 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-42090 and fix it if it is affected.\n\nWhat it is: CVE-2021-42090 is a critical unsafe deserialization vulnerability in Zammad Zammad, published on 7 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-42090 in the wild and no public exploit code.\n\nAffected product: Zammad Zammad. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2021-42090/ (Markdown: https://insights.sbomify.com/CVE-2021-42090/index.md)","id":"CVE-2021-42090","markdown":"https://insights.sbomify.com/CVE-2021-42090/index.md","name":"CVE-2021-42090","record":{"aliases":["GHSA-7qc3-f238-wf3x"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Zammad helpdesk","requires_auth":"none","summary":"Remote attackers can execute arbitrary code via unsafe deserialization in the Form functionality of Zammad.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"zammad","vendor":"zammad"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"description":"An issue was discovered in Zammad before 4.1.1. The Form functionality allows remote code execution because deserialization is mishandled.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Deserialization in n/a","id":"CVE-2021-42090","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"zammad:zammad","products":["zammad:zammad"],"type":"deserialization","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Server-side request forgery in n/a","id":"CVE-2021-42091"},"packages":[],"prev":{"headline":"Information disclosure in n/a","id":"CVE-2021-42089"},"products":["n/a"],"published":"2021-10-07","related":[{"cvss_score":8.7,"headline":"Zammad GmbH Zammad Session Fixation","id":"CVE-2026-102489","kev_date_added":"2026-10-02","published":"2026-09-30"},{"cvss_score":8.5,"headline":"Zammad GmbH Zammad Improper Privilege Management","id":"CVE-2026-102490","kev_date_added":"2026-10-02","published":"2026-09-30"},{"cvss_score":9.8,"headline":"Code injection in n/a","id":"CVE-2022-48021","kev_date_added":null,"published":"2023-02-03"},{"cvss_score":9.8,"headline":"Security feature bypass in n/a","id":"CVE-2022-35490","kev_date_added":null,"published":"2022-08-08"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2021-42094","kev_date_added":null,"published":"2021-10-07"},{"cvss_score":9.8,"headline":"Auth bypass in n/a","id":"CVE-2020-26030","kev_date_added":null,"published":"2020-12-28"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"Remote attackers can execute arbitrary code via unsafe deserialization in the Form functionality of Zammad.","url":"https://insights.sbomify.com/CVE-2021-42090/"}